CN107400778B - A method of desorbing golden thiosulfate anion complex ion from strong-base anion-exchange resin - Google Patents
A method of desorbing golden thiosulfate anion complex ion from strong-base anion-exchange resin Download PDFInfo
- Publication number
- CN107400778B CN107400778B CN201710671881.3A CN201710671881A CN107400778B CN 107400778 B CN107400778 B CN 107400778B CN 201710671881 A CN201710671881 A CN 201710671881A CN 107400778 B CN107400778 B CN 107400778B
- Authority
- CN
- China
- Prior art keywords
- desorption
- golden
- strippant
- resin
- gold
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
- C22B3/24—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition by adsorption on solid substances, e.g. by extraction with solid resins
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B11/00—Obtaining noble metals
- C22B11/04—Obtaining noble metals by wet processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
- C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
- C22B3/42—Treatment or purification of solutions, e.g. obtained by leaching by ion-exchange extraction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The method that the invention discloses a kind of to desorb golden thiosulfate anion complex ion from strong-base anion-exchange resin, with Na2SO3And Na2SO4Mixed solution as strippant to load have golden thiosulfate anion complex ion strong-base anion-exchange resin carry out dynamic desorption.This method passes through SO3 2‑And SO4 2‑Synergistic effect to the [Au (S being adsorbed on strong-base anion-exchange resin2O3)2]3‑Complex ion is desorbed, the desorption efficiency of gold is up to 98% or more, compared with the method that traditional rhodanate, nitrate or polythionate etc. using one-component is desorbed, method of the invention has many advantages, such as that nontoxic, reagent performance is stable, desorption is at low cost, desorption rate is fast, desorption effect is good, resin desorption and regeneration synchronously complete and to further recycling golden in stripping liquid without negative effect, has good prospects for commercial application.
Description
Technical field
The present invention relates to technical field of wet metallurgy, and in particular to one kind desorbs gold from strong-base anion-exchange resin
The method of thiosulfate anion complex ion.
Background technique
Gold plays an important role in the national economic development and social progress.In traditional gold extracting method, cyaniding is accounted for
According to leading position.However, cyanide has severe toxicity and the golden speed of leaching is slow, to environmental and human health impacts nocuousness, this has promoted non-cyanogen to mention
The development of golden method.Wherein, thiosulfate technique soaks golden index height, small toxicity corrosion-free to equipment, at low cost and to containing with it
The advantages such as the Refractory Au-ores high treating effect such as carbon, copper are widely regarded as most promising non-cyanogen gold extracting method.However, the method
Industrial application also it is remote not extensively, one of major reason is exactly that gold difficulty is recycled from its leachate.
The method reported in the literature in recent years that gold is recycled from thiosulfate leaching liquid mainly has method of cementation, activity
Carbon adsorption, solvent extraction, electrodeposition method and resin adsorption method.However, method of cementation metal powder consumption is big and gained
Golden purity is not high in precipitated products.In addition, introducing for foreign metal ion may generate not the recycling of leachate
Benefit influences.Effect is poor when active carbon adsorption is for recycling golden in thiosulfate leaching liquid, this may be because of [Au
(S2O3)2]3-The negative electrical charge of complex ion is high and space steric effect causes greatly active carbon not strong to its affinity.Solvent extraction pair
Water phase clarity requires height, and ore pulp is needed by secondary filter, thus complex process.In addition, extractant can be partially soluble in water phase
And accumulate, this will cause the loss of extractant and is unfavorable for the recycling of leachate.Copper meeting using electrodeposition method, in leachate
It is deposited together in cathode with gold, and also in electrode surface oxidation reaction can occur for the thiosulfate anion in leachate, it reduce
Electrodeposition efficiency and the recycling difficulty for making leachate.In contrast, resin adsorption method has that adsorption rate is fast, adsorption capacity
Greatly, the advantages that low to water quality requirement, resin desorption and regeneration can synchronously complete, therefore be considered as from thiosulfate leaching liquid
The most promising method of recycling gold.
Because weak-base anion-exchange resin adsorption capacity is low, therefore recycling golden in thiosulfate leaching liquid is generally adopted
Use strong-base anion-exchange resin.However, since strong-base anion-exchange resin is to [Au (S2O3)2]3-Complex ion has strong
Affinity, therefore the desorption of subsequent gold is difficult, it usually needs high concentration desorption agent solution (general concentration need to 2mol/L with
On).The reagent for being traditionally used for golden thiosulfate anion complex ion desorption on strong-base anion-exchange resin mainly has thiocyanic acid
Salt, polythionate and nitrate.However, rhodanate is toxic and expensive, and works as and returned from stripping liquid using electrodeposition method
When receiving gold, electrode can be corroded.In addition, regenerating resin is difficult to traditional hydrochloric acid or sulfuric acid, this is because rhodanate is strong
It is easy to decompose under acid condition and generates elemental sulfur, sulphur precipitating can block resin duct and then make resin poison.Polythionate is (main
It to be S3O6 2-And S4O6 2-) for desorbing [Au (S2O3)2]3-Since itself is easily decomposed when complex ion, dosage is big.In addition,
Also sulphur precipitating can be generated when regenerating using hydrochloric acid or sulfuric acid to resin makes resin poison.And nitrate is used, with front two
Kind strippant is compared, it usually needs the more nitrate of the higher volume of concentration can reach identical desorption effect, and reason may
It is that resin is better than nitrate anion to the affinity of thiocyanate radical and polythionate.In addition, desorbed by nitrate solution
Your liquid is unstable, and the black precipitate of gold can be generated when recycling gold from the solution using electrodeposition method, is unfavorable for the recycling of gold.
In conclusion utilizing the golden thiosulfate anion complex ion on traditional method desorption strong-base anion-exchange resin
There are larger problems in terms of reagent stability, economy or the feature of environmental protection.Moreover, gold desorption and resin regeneration need substep into
Row, causes desorption technique long flow path, and in addition resin is easy poisoning in the process, is allowed to that difficulty is recycled, leads to golden recycling
Increased costs.In addition, the strippant of high concentration may produce further recycling (generally using electrodeposition method) golden in stripping liquid
Raw adverse effect.Therefore, need to develop it is a kind of more efficiently, on desorption strong-base anion-exchange resin economical and environmentally friendly
The method of golden thiosulfate anion complex ion.
Summary of the invention
It is an object of the present invention to overcome the shortcomings of to mention in background above technology and defect, provide it is a kind of efficiently, warp
Ji, environmental protection, simple process, and it is thio not influence desorption gold on the slave strong-base anion-exchange resin of recycling golden in stripping liquid
The method of sulfate radical complex ion.
In order to solve the above technical problems, technical solution proposed by the present invention are as follows:
A method of desorbing golden thiosulfate anion complex ion from strong-base anion-exchange resin, it is characterised in that:
With Na2SO3And Na2SO4Mixed solution as strippant to load have golden thiosulfate anion complex ion strong alkalinity anion hand over
It changes resin and carries out dynamic desorption.
During strippant and resin contact, mainly pass through SO3 2-Ion, SO4 2-Ion and [Au (S2O3)2]3-With from
Son interaction and realize gold desorption.Its desorb mechanism it is as follows: when the strippant containing sodium sulfite and sodium sulphate with
[Au (S on resin2O3)2]3-After complex ion contact, SO3 2-Ion can replace [Au (S2O3)2]3-A S in complex ion2O3 2-
Ion and form new mixed ligand [Au (S2O3)(SO3)]3-Complex ion.Resin is to [Au (S2O3)(SO3)]3-The parent of complex ion
With power well below to [Au (S2O3)2]3-The affinity of complex ion, therefore, the Na of low concentration2SO3And Na2SO4Mixing it is molten
The desorption of gold can be realized in liquid.In the desorption method, golden desorption is SO3 2-Ion and SO4 2-Two component collaborations of ion are made
As a result, the reaction of its co-desorption is as shown in equation (1).
Above-mentioned method, it is preferred that the Na2SO3And Na2SO4Mixed solution in, Na2SO3Concentration be 0.1mol/L
~0.5mol/L, Na2SO4Concentration be 0.2mol/L~0.5mol/L.Since the desorption process of gold is in SO3 2-Ion and SO4 2-
It is carried out under the synergistic effect of ion, need to only use the Na of low concentration2SO3And Na2SO4, and it is preferred that using above-mentioned concentration
Na2SO3And Na2SO4Mixed solution the efficient desorption of gold not only may be implemented as strippant, but also reagent can be saved, reduce life
Produce cost.
Above-mentioned method, it is preferred that during the dynamic desorption, the flow velocity of strippant be 2~6 resin bed volumes/
Hour.The size of strippant flow velocity determines its residence time in resin bed, namely determine its on resin wait solve
The time of the golden thiosulfate anion complex ion interaction of suction.Interaction between strippant and golden thiosulfate anion complex ion
The regular hour is needed, if strippant flow velocity is excessively high, time of contact is short, and not exclusively, golden desorption effect is undesirable for interaction.
Conversely, although the two interaction is completely, golden desorption effect is good, and flow velocity is too low to be made to desorb if strippant flow velocity is too low
Overlong time causes to desorb economy decline.The present invention comprehensively considers the desorption effect and desorption economy of gold, preferably will desorption
The flow control of agent is in 2~6 resin bed volume/hours.
Above-mentioned method, it is preferred that the dosage of the strippant is 10~30 resin bed volumes.Strippant dosage is logical
Cross golden concentration in strippant flow velocity and resin bed bottom efflux to determine, specifically use following methods determination: allow strippant with
Certain flow rate passes through resin bed, the concentration of a certain amount of stripping liquid detection gold is taken from exchange column bottom at regular intervals, when several
Can't detect gold there are when, it is believed that desorption it is complete, thereby determine that required strippant dosage.Strippant flow velocity and desorption
When agent dosage determines, corresponding desorption time is also determined that.If strippant dosage is very few, the desorption effect of gold is bad；If
Strippant dosage is excessive, and it will cause the wastes of reagent, increases production cost.Therefore, the present invention comprehensively consider desorption effect and
Cost factor controls strippant dosage in 10~30 resin bed volumes.
Above-mentioned method, it is preferred that the load gold amount of the strong-base anion-exchange resin is 5kg/t~20kg/t.This
The desorption method of invention is suitable for the wider gold loaded resin for carrying gold amount range, it is only necessary to according to the load gold amount of gold loaded resin to desorption
Technological parameter, which is made, correspondingly to be adjusted.The load gold amount of gold loaded resin obtained by conventional RIP method (resin in pulp process) generally exists
5kg/t~20kg/t suitably adjusts Na within the scope of the invention2SO3And Na2SO4Concentration, strippant flow velocity and strippant are used
Amount, that is, can be applied to the gold loaded resin of above-mentioned load gold range.
Compared with the prior art, the advantages of the present invention are as follows:
(1) present invention is using the mixed solution of sodium sulfite and sodium sulphate as strippant, (such as compared to existing strippant
Rhodanate, polythionate and nitrate), strippant used in the present invention is nontoxic, cheap and property is stablized.
(2) desorption is carried out using method of the invention and not only reduces desorption cost, and improve the desorption efficiency of gold.It passes
Desorption method (using single component stripping workshop) desorption gold of system usually requires higher concentration and large volume of stripping workshop.
In contrast, the present invention is due to being utilized the synergistic effect of two component of sodium sulfite and sodium sulphate so that reagent concentration and dosage are equal
It significantly reduces, and the desorption of gold is more thorough, golden desorption efficiency is up to 98% or more.
(3) further recycling golden in stripping liquid is conducive to using method of the invention.Using electrodeposition method from of the invention
In stripping liquid (your liquid) obtained by co-desorption method when recycling gold, the stripping liquid both will not corroding electrode will not gold oxide match from
Son, to will not influence further recycling golden in stripping liquid.
(4) it is synchronously completed using the desorption of method gold and the regeneration of resin of the invention, simple process.After the completion of desorption,
Counter ion on resin is sulfate ion, and resin is weak to its affinity, therefore can be returned directly to thiosulfate leaching liquid
The middle recycling for carrying out gold, and since sulfate ion is the unavoidable ion in thiosulfate leaching liquid, thus it is in leachate
In it is a small amount of accumulation will not have an adverse effect to leaching process.
Specific embodiment
To facilitate the understanding of the present invention, present invention work more comprehensively, is meticulously described below in conjunction with preferred embodiment,
But the protection scope of the present invention is not limited to the following specific embodiments.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection scope.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city
Field is commercially available or can be prepared by existing method.
Embodiment 1:
First using simulation thiosulfate leaching liquid, gold loaded resin is prepared in the method for stirring and adsorbing.Wherein, sulphur is simulated
Gold concentration is 20mg/L, concentration of sodium thiosulfate 0.3mol/L, copper concentration 0.03mol/L, ammonia in thiosulfate leachate
Water concentration is 1mol/L, and simulation leachate volume is 2L, and absorption resin uses Tulsion A-21S basic resin, and resin is used
Amount is 10mL, mixing speed 150r/min, adsorption time 1h.After absorption, obtain carrying the resin that gold amount is 5kg/t.
Then, obtained gold loaded resin is subjected to dress column.Wherein, exchange column internal diameter is 4mm, and resin bed height is 80cm, resin bed body
Product is 10mL.
Using Na2SO3With Na2SO4Mixed solution as strippant to above-mentioned gold loaded resin carry out dynamic desorption.Desorption
In agent: Na2SO3For 0.1mol/L, Na2SO4For 0.2mol/L.The flow velocity of strippant is 3 resin bed volume/hours, and dosage is
15 resin bed volumes.With this condition, concentration golden in gained stripping liquid is 229.1mg/L, and golden desorption efficiency is 98.1%.
Embodiment 2:
Gold loaded resin used is in the same manner as in Example 1, using Na2SO3With Na2SO4Mixed solution as strippant to upper
It states gold loaded resin and carries out dynamic desorption.In strippant: Na2SO3For 0.3mol/L, Na2SO4For 0.2mol/L.The flow velocity of strippant
For 4 resin bed volume/hours, dosage is 13 resin bed volumes.With this condition, concentration golden in gained stripping liquid is
265.2mg/L, golden desorption efficiency are 98.5%.
Embodiment 3:
Gold loaded resin used is in the same manner as in Example 1, using Na2SO3With Na2SO4Mixed solution as strippant to upper
It states gold loaded resin and carries out dynamic desorption.In strippant: Na2SO3For 0.4mol/L, Na2SO4For 0.3mol/L.The flow velocity of strippant
For 3 resin bed volume/hours, dosage is 12 resin bed volumes.With this condition, concentration golden in gained stripping liquid is
289.0mg/L, golden desorption efficiency are 99.1%.
Embodiment 4:
Gold loaded resin used is in the same manner as in Example 1, using Na2SO3With Na2SO4Mixed solution as strippant to upper
It states gold loaded resin and carries out dynamic desorption.In strippant: Na2SO3For 0.5mol/L, Na2SO4For 0.5mol/L.The flow velocity of strippant
For 2 resin bed volume/hours, dosage is 10 resin bed volumes.With this condition, concentration golden in gained stripping liquid is
347.2mg/L, golden desorption efficiency are 99.2%.
Comparative example 1:
Gold loaded resin used is in the same manner as in Example 1, using ammonium thiocyanate solution as strippant to above-mentioned gold loaded resin
Carry out dynamic desorption.Ammonium thiocyanate is 2.5mol/L in strippant, and the flow velocity of strippant is 3 resin bed volume/hours, dosage
For 15 resin bed volumes.With this condition, concentration golden in gained stripping liquid is 215.8mg/L, and golden desorption efficiency is
92.5%.
Comparative example 2:
Gold loaded resin used is in the same manner as in Example 1, using tetrathionic acid sodium solution as strippant to above-mentioned load Jin Shu
Rouge carries out dynamic desorption.Sodium tetrathionate is 2.5mol/L in strippant, and the flow velocity of strippant is 3 resin bed volume/hours,
Dosage is 13 resin bed volumes.With this condition, concentration golden in gained stripping liquid is 254.7mg/L, and golden desorption efficiency is
94.6%.
Comparative example 3:
Gold loaded resin used is in the same manner as in Example 1, using ammonium nitrate solution as strippant to above-mentioned gold loaded resin into
Mobile state desorption.Ammonium nitrate is 2.5mol/L in strippant, and the flow velocity of strippant is 3 resin bed volume/hours, dosage 16
A resin bed volume.With this condition, concentration golden in gained stripping liquid is 195.1mg/L, and golden desorption efficiency is 89.2%.
Embodiment 5:
First using simulation thiosulfate leaching liquid, gold loaded resin is prepared in the method for stirring and adsorbing.Wherein, sulphur is simulated
Gold concentration is 20mg/L, concentration of sodium thiosulfate 0.3mol/L, copper concentration 0.03mol/L, ammonia in thiosulfate leachate
Water concentration is 1mol/L, and simulation leachate volume is 4L, and absorption resin uses DEX-Au basic resin, and amount of resin is
10mL, mixing speed 200r/min, adsorption time 2h.After absorption, obtain carrying the resin that gold amount is 10kg/t.So
Afterwards, obtained gold loaded resin is subjected to dress column.Wherein, exchange column internal diameter is 4mm, and resin bed height is 80cm, resin bed volume
For 10mL.
Using Na2SO3With Na2SO4Mixed solution as strippant to above-mentioned gold loaded resin carry out dynamic desorption.Desorption
In agent: Na2SO3For 0.1mol/L, Na2SO4For 0.2mol/L.The flow velocity of strippant is 3 resin bed volume/hours, and dosage is
20 resin bed volumes.With this condition, concentration golden in gained stripping liquid is 344.4mg/L, and golden desorption efficiency is 98.4%.
Embodiment 6:
Gold loaded resin used is in the same manner as in Example 5, using Na2SO3With Na2SO4Mixed solution as strippant to upper
It states gold loaded resin and carries out dynamic desorption.In strippant: Na2SO3For 0.3mol/L, Na2SO4For 0.2mol/L.The flow velocity of strippant
For 4 resin bed volume/hours, dosage is 18 resin bed volumes.With this condition, concentration golden in gained stripping liquid is
383.1mg/L, golden desorption efficiency are 98.5%.
Embodiment 7:
Gold loaded resin used is in the same manner as in Example 5, using Na2SO3With Na2SO4Mixed solution as strippant to upper
It states gold loaded resin and carries out dynamic desorption.In strippant: Na2SO3For 0.4mol/L, Na2SO4For 0.3mol/L.The flow velocity of strippant
For 3 resin bed volume/hours, dosage is 16 resin bed volumes.With this condition, concentration golden in gained stripping liquid is
434.4mg/L, golden desorption efficiency are 99.3%.
Embodiment 8:
Gold loaded resin used is in the same manner as in Example 5, using Na2SO3With Na2SO4Mixed solution as strippant to upper
It states gold loaded resin and carries out dynamic desorption.In strippant: Na2SO3For 0.5mol/L, Na2SO4For 0.5mol/L.The flow velocity of strippant
For 2 resin bed volume/hours, dosage is 14 resin bed volumes.With this condition, concentration golden in gained stripping liquid is
497.0mg/L, golden desorption efficiency are 99.4%.
Comparative example 4:
Gold loaded resin used is in the same manner as in Example 5, using ammonium thiocyanate solution as strippant to above-mentioned gold loaded resin
Carry out dynamic desorption.Ammonium thiocyanate is 2.5mol/L in strippant, and the flow velocity of strippant is 3 resin bed volume/hours, dosage
For 20 resin bed volumes.With this condition, concentration golden in gained stripping liquid is 326.2mg/L, and golden desorption efficiency is
93.2%.
Comparative example 5:
Gold loaded resin used is in the same manner as in Example 5, using tetrathionic acid sodium solution as strippant to above-mentioned load Jin Shu
Rouge carries out dynamic desorption.Sodium tetrathionate is 2.5mol/L in strippant, and the flow velocity of strippant is 3 resin bed volume/hours,
Dosage is 19 resin bed volumes.With this condition, concentration golden in gained stripping liquid is 349.3mg/L, and golden desorption efficiency is
94.8%.
Comparative example 6:
Gold loaded resin used is in the same manner as in Example 5, using ammonium nitrate solution as strippant to above-mentioned gold loaded resin into
Mobile state desorption.Ammonium nitrate is 2.5mol/L in strippant, and the flow velocity of strippant is 3 resin bed volume/hours, dosage 22
A resin bed volume.With this condition, concentration golden in gained stripping liquid is 281.6mg/L, and golden desorption efficiency is 88.5%.
Embodiment 9:
First using simulation thiosulfate leaching liquid, gold loaded resin is prepared in the method for stirring and adsorbing.Wherein, sulphur is simulated
Gold concentration is 20mg/L, concentration of sodium thiosulfate 0.3mol/L, copper concentration 0.03mol/L, ammonia in thiosulfate leachate
Water concentration is 1mol/L, and simulation leachate volume is 8L, and absorption resin uses IRA-400 basic resin, and amount of resin is
10mL, mixing speed 250r/min, adsorption time 3h.After absorption, obtain carrying the resin that gold amount is 20kg/t.So
Afterwards, obtained gold loaded resin is subjected to dress column.Wherein, exchange column internal diameter is 4mm, and resin bed height is 80cm, resin bed volume
For 10mL.
Using Na2SO3With Na2SO4Mixed solution as strippant to above-mentioned gold loaded resin carry out dynamic desorption.Desorption
In agent: Na2SO3For 0.1mol/L, Na2SO4For 0.2mol/L.The flow velocity of strippant is 3 resin bed volume/hours, and dosage is
30 resin bed volumes.With this condition, concentration golden in gained stripping liquid is 460.6mg/L, and golden desorption efficiency is 98.7%.
Embodiment 10:
Gold loaded resin used is in the same manner as in Example 9, using Na2SO3With Na2SO4Mixed solution as strippant to upper
It states gold loaded resin and carries out dynamic desorption.In strippant: Na2SO3For 0.3mol/L, Na2SO4For 0.2mol/L.The flow velocity of strippant
For 4 resin bed volume/hours, dosage is 27 resin bed volumes.With this condition, concentration golden in gained stripping liquid is
510.7mg/L, golden desorption efficiency are 98.5%.
Embodiment 11:
Gold loaded resin used is in the same manner as in Example 9, using Na2SO3With Na2SO4Mixed solution as strippant to upper
It states gold loaded resin and carries out dynamic desorption.In strippant: Na2SO3For 0.4mol/L, Na2SO4For 0.3mol/L.The flow velocity of strippant
For 3 resin bed volume/hours, dosage is 25 resin bed volumes.With this condition, concentration golden in gained stripping liquid is
557.2mg/L, golden desorption efficiency are 99.5%.
Embodiment 12:
Gold loaded resin used is in the same manner as in Example 9, using Na2SO3With Na2SO4Mixed solution as strippant to upper
It states gold loaded resin and carries out dynamic desorption.In strippant: Na2SO3For 0.5mol/L, Na2SO4For 0.5mol/L.The flow velocity of strippant
For 2 resin bed volume/hours, dosage is 22 resin bed volumes.With this condition, concentration golden in gained stripping liquid is
630.6mg/L, golden desorption efficiency are 99.1%.
Comparative example 7:
Gold loaded resin used is in the same manner as in Example 9, using ammonium thiocyanate solution as strippant to above-mentioned gold loaded resin
Carry out dynamic desorption.Ammonium thiocyanate is 2.5mol/L in strippant, and the flow velocity of strippant is 3 resin bed volume/hours, dosage
For 27 resin bed volumes.With this condition, concentration golden in gained stripping liquid is 485.9mg/L, and golden desorption efficiency is
93.7%.
Comparative example 8:
Gold loaded resin used is in the same manner as in Example 9, using tetrathionic acid sodium solution as strippant to above-mentioned load Jin Shu
Rouge carries out dynamic desorption.Sodium tetrathionate is 2.5mol/L in strippant, and the flow velocity of strippant is 3 resin bed volume/hours,
Dosage is 24 resin bed volumes.With this condition, concentration golden in gained stripping liquid is 558.8mg/L, and golden desorption efficiency is
95.8%.
Comparative example 9:
Gold loaded resin used is in the same manner as in Example 9, using ammonium nitrate solution as strippant to above-mentioned gold loaded resin into
Mobile state desorption.Ammonium nitrate is 2.5mol/L in strippant, and the flow velocity of strippant is 3 resin bed volume/hours, dosage 28
A resin bed volume.With this condition, concentration golden in gained stripping liquid is 459.0mg/L, and golden desorption efficiency is 91.8%.
By above embodiments and comparative example as it can be seen that being used for a variety of different types and the different gold loaded resins for carrying gold amount
Method of the invention, utilizes Na2SO3With Na2SO4Mixed solution carry out dynamic desorption as strippant, golden desorption efficiency is high
In existing single strippant (ammonium thiocyanate, sodium tetrathionate or ammonium nitrate), desorption efficiency is up to 98% or more.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (3)
1. a kind of method for desorbing golden thiosulfate anion complex ion from strong-base anion-exchange resin, it is characterised in that: with
Na2SO3And Na2SO4Mixed solution as strippant to load have golden thiosulfate anion complex ion strong alkalinity anion exchange
Resin carries out dynamic desorption；The Na2SO3And Na2SO4Mixed solution in, Na2SO3Concentration be 0.1mol/L~0.5mol/
L, Na2SO4Concentration be 0.2mol/L~0.5mol/L；The load gold amount of the strong-base anion-exchange resin be 5kg/t~
20kg/t。
2. according to the method described in claim 1, it is characterized by: during the dynamic desorption, the flow velocity of strippant is 2~
6 resin bed volume/hours.
3. according to the method described in claim 2, it is characterized by: the dosage of the strippant is 10~30 resin bed bodies
Product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710671881.3A CN107400778B (en) | 2017-08-08 | 2017-08-08 | A method of desorbing golden thiosulfate anion complex ion from strong-base anion-exchange resin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710671881.3A CN107400778B (en) | 2017-08-08 | 2017-08-08 | A method of desorbing golden thiosulfate anion complex ion from strong-base anion-exchange resin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107400778A CN107400778A (en) | 2017-11-28 |
| CN107400778B true CN107400778B (en) | 2019-01-18 |
Family
ID=60401653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710671881.3A Active CN107400778B (en) | 2017-08-08 | 2017-08-08 | A method of desorbing golden thiosulfate anion complex ion from strong-base anion-exchange resin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107400778B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114540635B (en) * | 2022-01-25 | 2023-11-07 | 中南大学 | Method for extracting gold by catalyzing thiosulfate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098142A (en) * | 1993-07-28 | 1995-02-01 | 纽蒙特金公司 | With the Wet-process metallurgy method of thiosulphate lixiviant by recovery precious metal useful component in the precious metal ore |
| WO2011154607A1 (en) * | 2010-06-10 | 2011-12-15 | Outotec Oyj | Method of gold leaching |
| CA2865721A1 (en) * | 2012-03-01 | 2013-09-06 | Jx Nippon Mining & Metals Corporation | Method of recovering gold adsorbed on activated carbon and method of manufacturing gold using the same |
| CN107002168A (en) * | 2014-10-22 | 2017-08-01 | 伊那维克澳大利亚有限公司 | A kind of leaching simultaneously in hygrometric state solid and the METAL EXTRACTION method of absorption |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6632264B2 (en) * | 2001-04-17 | 2003-10-14 | The University Of British Columbia | Gold recovery from thiosulfate leaching |
-
2017
- 2017-08-08 CN CN201710671881.3A patent/CN107400778B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1098142A (en) * | 1993-07-28 | 1995-02-01 | 纽蒙特金公司 | With the Wet-process metallurgy method of thiosulphate lixiviant by recovery precious metal useful component in the precious metal ore |
| WO2011154607A1 (en) * | 2010-06-10 | 2011-12-15 | Outotec Oyj | Method of gold leaching |
| CA2865721A1 (en) * | 2012-03-01 | 2013-09-06 | Jx Nippon Mining & Metals Corporation | Method of recovering gold adsorbed on activated carbon and method of manufacturing gold using the same |
| CN107002168A (en) * | 2014-10-22 | 2017-08-01 | 伊那维克澳大利亚有限公司 | A kind of leaching simultaneously in hygrometric state solid and the METAL EXTRACTION method of absorption |
Non-Patent Citations (1)
| Title |
|---|
| Ion exchange adsorption and elution for recovering gold thiosulfate from;M.I. Jeffrey et al.;《Hydrometallurgy》;20091114;摘要，第138页右栏倒数第1段，第139页3.2.2，第140页右栏倒数第2段，第143页结论 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107400778A (en) | 2017-11-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107488789B (en) | A method of the co-desorption gold thiosulfate anion complex ion from strong-base anion-exchange resin | |
| CN103789552B (en) | Method for recovering rhenium from high-temperature alloy pickle liquor | |
| CN109182791B (en) | Method for removing aluminum from rare earth feed liquid by organic acid complexation-solid phase adsorption | |
| CN105289261A (en) | Washing liquid for eluting mercury in mercury-containing flue gas and method for recovering mercury form mercury-containing flue gas | |
| CN104593605A (en) | Method for processing multi-metal alloy | |
| CN108866358A (en) | A kind of complexing-ion exchange synergistic effect method that absorption removes aluminium from rare-earth liquid | |
| CN105714121B (en) | A kind of method that rhenium and bismuth are reclaimed from acid waste liquid | |
| CN103276206A (en) | Method for leaching gold in alkaline thiourea system efficiently and stably | |
| CN113249571A (en) | Method for recovering nickel and cobalt from laterite-nickel ore by resin adsorption method | |
| CN108504865A (en) | A method of strengthening waste lithium ion cell anode active material and leaches | |
| CN109706315A (en) | A kind of method that molybdenum disulfide adsorbs noble metal complex ion in thiosulfate leaching liquid | |
| Mohebbi et al. | Ion exchange resin technology in recovery of precious and noble metals | |
| CN107400778B (en) | A method of desorbing golden thiosulfate anion complex ion from strong-base anion-exchange resin | |
| CN108950202B (en) | Method for recovering gold from acid thiourea gold leaching solution | |
| WO2023087727A1 (en) | Method for vanadium extraction and precipitation by using vanadium-containing carbonated leach liquor and recycling of residual liquid | |
| CN107090546B (en) | A kind of method of the arsenic removal from nickel sulfate solution | |
| CN110724838A (en) | Method for separating tungsten and molybdenum from waste catalyst containing tungsten and molybdenum | |
| CN107519948A (en) | Composite amino weakly-alkaline anion exchange resin and method for recovering rhenium from arsenic sulfide slag leachate | |
| US20090217786A1 (en) | Processing of laterite ore | |
| CN105624420A (en) | Method for leaching gold by thiosulfate through cobalt and ammonia catalysis | |
| CN110423902B (en) | Preparation method and system of high-purity rare earth carbonate | |
| CN114540635B (en) | Method for extracting gold by catalyzing thiosulfate | |
| CN107904394A (en) | The dump leaching method for pre-oxidizing of primary gold ore stone | |
| CN110104688A (en) | A kind of ammonium tungstate feed liquid removes molybdenum method | |
| CN113151677B (en) | Method for leaching cobalt intermediate product by sulfate without acid |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |